Hello,
Thank you for your answer. But this is not good at all.
I don't know what to say, I wonder if you just test this code yourself.
Dates are not correctly formatted to fit mysql DATE. JSON sends ISO format, I had to change it : date('Y-m-d H:i:s', strtotime($obj_del['startDate']));
No code about parentID or progress in the crud.php file, so simple child function can't work.
Javascript action=update function seems incorrect. When you use indent / outdent, it doesn't pass because it's in args.data.item and not args.item.
Renaming a task doesn't work because there is no if condition for this case.
Am I supposed to guess myself how all of your own objects are working ?
Sorry for that, but I litterally spent hours in this.